hi all
decided to go with new alternator but was wondering if anybody knows at what voltage the charging test has to drop below for your battery light to turn on as I am reading 13.49v (charging test) and have done 3 test over the space of a week and it hasn't changed, these are also test from an external unit and not the in car test from the centre monitor.
rrs tdv8 2007

Sorry not to reply sooner. Not sure at what point the battery light will come on at, but you should be getting these voltages:

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